18 



PROCEEDINGS OF THE ACADEMY OF 



[1898. 



Delphinium Menziesii DC. 



On the Columbia, April 14, 

 1806. A sort of Larkspur with 

 3 styles. [Poor specimen]. 



Dentaria tenella Pursh. 



Columbia near quicksands, 

 April 1, 180G. [Complete, very 

 slender plant]. 2 



Erysimum asperum DC. 



On the Kooskooskee, June 1, 

 1806. [Whole plant, in flower]. 3 



Cleome integrifolia Torr. & Gray. 



Cleome serrulata var. roseus, 

 Nova species. Specimens from 

 White River, August 29, 1806. 

 Cleome. A new species. [Poor 

 specimen]. 



Cleome integrifolia Torr. & Gray. 



No. 43, August 25th, growth 

 of the open prairies. Open prai- 

 ries, August 25, 1804. 



Cerastium arvense L. 



Plains of Columbia, April 22, 

 1806. [Good specimen]. 



Pursh, Fl. 439. On the banks 

 of the Columbia. 2/. Apr. v. s. 

 in Herb. Lewis. 



E. lanceolatum Pursh, F1.436 

 (not R. Br.). On the banks of 

 the Missouri. $ . June, v. s. 



C. serrulata Pursh, Fl. 441. 

 On the banks of the Missouri. 

 O. Aug. v. s. in Herb. Lewis. 

 [Leaves are slightly serrulate 

 and name should stand]. 



C. serrulata Pursh, Fl. 441. 

 On the banks of the Missouri. 

 ©. Aug. v. s. in Herb. Lewis. 



[Pursh says of it : glabra, 

 which is certainly true of the 

 stem, and it may, therefore, be 

 safely separated from the very 

 pubescent plant Polanisia trachy- 

 sperma T. & G. (?) with which 

 the specimen is mixed]. 



C. elongatum Pursh, Fl. 321. 

 On the plains of Columbia River, 

 M. Lewis. % . April, v. s. in 

 Herb. Lewis. 4 



2 The specimen from which the description was evidently taken, in the 

 herbarium of the Academy, has not the tuberous root as this has. 



3 Erysimum asperum DC 



Pursh has overlooked this specimen from ''Rockford Camp, April 17, 

 1806,'' and describes E. lanceolatum, which is not distinct, from the collection 

 of Bradbury on the Missouri. 



4 Cerastium arvense L. 



Cerastium elongatum Pursh, I, 321, " on the plains of the Columbia River, 

 Mr. Lewis, April." The label with specimen reads '• Plains of Columbia, 

 April 22, 1806." Modern collators give it as a synonym of C. arvense, but 

 with the excellent specimen now in hand, it seems to be a good species. It is 

 not merely hirsute, but glandular viscid in all its parts. Its remarkably long 

 narrow leaves, very leafy nodes with short internodes, are characters which it 

 does not share with any forms of C. arvense in our herbarium. 



